Figure 9.

Changes in the starch content and physiology of PSR1-expressing cells in response to P starvation in the absence of acetate. Total starch (A), biovolume (B), fresh weight biomass (C), and total chlorophyll (Chl a+b; D) of PSR1 overexpression lines are shown. Parameters were quantified at days 7 and 14 in high-P and low-P growth conditions in the absence of acetate. Each data point represents the mean ± se of three replicates each with three technical replicates and is representative of three independent experiments. Asterisks denote significant differences (P < 0.05) from wild-type (WT) values as determined by one-way ANOVA.